The principle used in a musket was just like the principle behind cannon which is why muskets were also called mini canons. As it was difficult for a soldier to measure the amount of powder to be poured down the barrel, it was supplied in a pre-measured pouch that had to be torn apart by the soldier before every shot.
The approx distance between Heathrow and Gatwick Airport in a straight line is 29 miles or 46.66 KMS See the maps and links below for additional information related to driving distances, fuel costs and estimated journey times for this trip from Heathrow to Gatwick Airport.Happy trails!!Advertisements:f you were travelling in a mid range car that averaged 40 MPG and were paying Â£6.36 per gallon (1.40 per litre) for your petrol then the cost for this trip based on an estimated driving distance of 35.38 miles (56.93 kms) , from Heathrow to Gatwick Airport for your fuel would be in the region of Â£5.63.
Find out how far you will have to travel to get to Gatwick Airport. Below are various locations in the South of England with the distances in miles from Gatwick Airport. Use these distances to estimate travel times to Gatwick Airport. Drop off / Pick up.atwick by Car-Directions. London Gatwick is 28 miles (45km) south of London, directly linked to the M23 motorway at Junction 9 and to the A23 London-Brighton road.